Vocabulary
A statement of what you think will happen in an investigation
A hypothesis
Scientific investigation begins with this
A testable question
What are the four types of scientific investigation?
Experiments, surveys, samples, models
The average of the data
Mean
How do you write a hypothesis?
If...then...because
The ability to consistently repeat a measurement
Precision
What is the third step in the scientific method?
Identify variables
What are four ways that a scientist can use to organize their data?
Tables, graphs, charts, graphics
Find the mode of this group of data:
5, 12, 13, 16, 12, 2, 10
12
What makes a resource reliable?
It has been reviewed and accepted by other scientists
A set of observations that make you believe something is true
Evidence
What is the fifth step in the scientific method?
Test your hypothesis
What types of tools could scientists use during an investigation? List at least 3 examples
Answers will vary.
Find the range of this group of data:
5, 12, 13, 16, 12, 2, 10
14
What is an independent variable?
Something you can control during an investigation
Information from which a conclusion can be drawn or a prediction can be made
Data
Why is it important to properly document your procedures?
So another scientist can repeat your experiment and get the same results
A conclusion based on observations
Inference
Find the median of this group of data:
5, 12, 13, 16, 12, 2, 10
12
Name any 3 of the 8 safety rules we discussed in class
Tie back long hair and avoid loose clothing, wear safety goggles, never taste or smell substances, listen to instructions, keep plants and animals safe, use chemicals safely, read activity before beginning, and handle sharp objects carefully
Control Group
What are the full 8 steps of the scientific method in order?
Ask a question, form a hypothesis, identify variables, make a plan, test your hypothesis, collect and record data, state your conclusion, repeat trials
Why could a model be useful during an investigation?
It can help us investigate something that is large or too complex
Find the mean of this group of data:
5, 12, 13, 16, 12, 2, 10
7
Name the remaining safety rules not mentioned in the other question. If that question has not been answered yet, then you must name all 8 safety rules to earn the 500 points.
Tie back long hair and avoid loose clothing, wear safety goggles, never taste or smell substances, listen to instructions, keep plants and animals safe, use chemicals safely, read activity before beginning, and handle sharp objects carefully